2001
DOI: 10.1063/1.1419038
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Operation of a gated field emitter using an individual carbon nanofiber cathode

Abstract: We report on the operation of an integrated gated cathode device using a single vertically aligned carbon nanofiber as the field emission element. This device is capable of operation in a moderate vacuum for extended periods of time without experiencing a degradation of performance. Less than 1% of the total emitted current is collected by the gate electrode, indicating that the emitted electron beam is highly collimated. As a consequence, this device is ideal for applications that require well-focused electro… Show more

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Cited by 93 publications
(45 citation statements)
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“…Performing an atmospheric pressure plasma process in a microreactor leads to precise control of process parameters such as residence time and heat transfer, and also extreme quenching conditions, enabling control over the reactants to selectively produce desirable products (Nozaki et al, 2004). W 18 O 49 nanowires gave outstanding field emission characteristics with low threshold voltages due to local field enhancement and high aspect ratio (Guillorn et al, 2001 andZhou et al, 2005). Process of Source: Nanowires, Book edited by: Paola Prete, ISBN 978-953-7619-79-4, pp.…”
Section: Introductionmentioning
confidence: 99%
“…Performing an atmospheric pressure plasma process in a microreactor leads to precise control of process parameters such as residence time and heat transfer, and also extreme quenching conditions, enabling control over the reactants to selectively produce desirable products (Nozaki et al, 2004). W 18 O 49 nanowires gave outstanding field emission characteristics with low threshold voltages due to local field enhancement and high aspect ratio (Guillorn et al, 2001 andZhou et al, 2005). Process of Source: Nanowires, Book edited by: Paola Prete, ISBN 978-953-7619-79-4, pp.…”
Section: Introductionmentioning
confidence: 99%
“…The impact of pressure, temperature, gas ratio, choice of catalyst material, and even catalyst geometry on fiber morphology and growth rate have been explored [7][8][9][10][11][12][13][14][15][16]. Furthermore, the integration of ensembles of individual fibers and stochastic nanofiber forests into functional devices for electrochemical and biochemical sensing [17][18][19][20][21][22][23][24][25][26], gated-cathode field emitters [27][28][29], barriers to material transport [30][31][32] and templates for the synthesis of nanofluidic nozzles, or nanopipes [33,34], has also been described. These ensembles have benefited from fiber redundancy and as such are not impacted significantly by isolated defects in the form of missing or migrated fibers.…”
Section: Introductionmentioning
confidence: 99%
“…11 Since carbon nanostructures have started to stand on their feet in the form of VACNFs and VANTAs, they have provided an unprecedented opportunity to realize a new bottom-up-engineered material with excellent mechanical and electrical properties which could exploit the third dimension at a reasonable cost. It came as no surprise to see the new material being employed in a large spectrum of applications, from thermal interfaces 15 and flip-chip bumps 16 to electron emitters [17][18][19] and gene delivery arrays. 20,21 The achievements during the last few years in reproducible synthesis of high quality VACNFs and VANTAs have extended the boundaries of their application to the realm of nanoelectromechanical systems (NEMS).…”
mentioning
confidence: 99%